TARGET:=target
SRC:=src/main/java
include src/main/resources/org/xerial/snappy/VERSION

ifndef JAVA_HOME
$(warning Set JAVA_HOME environment variable)
endif


JAVA  := "$$JAVA_HOME/bin/java"
JAVAC := "$$JAVA_HOME/bin/javac"
JAVAH := "$$JAVA_HOME/bin/javah"

LITTLE_ENDIAN	:= "Little Endian"
BIG_ENDIAN	:= "Big Endian"
OSINFO_CLASS := org.xerial.snappy.OSInfo
OSINFO_PROG := lib/org/xerial/snappy/OSInfo.class

## building OSInfo.java
#$(info compiling OSInfo.java)
#$(shell mkdir -p lib)
#$(shell $(JAVAC) src/main/java/org/xerial/snappy/OSInfo.java -d lib)

OS_NAME := $(shell $(JAVA) -cp lib $(OSINFO_CLASS) --os)
OS_ARCH := $(shell $(JAVA) -cp lib $(OSINFO_CLASS) --arch)
LIB_FOLDER := $(shell $(JAVA) -cp lib $(OSINFO_CLASS))
IBM_JDK_LIB := lib/inc_ibm

ifeq ($(OS_NAME),Mac)
ENDIANESS:="Little Endian"
else
ENDIANESS:=$(shell lscpu | grep "Byte Order" |cut -d ":" -f2)
endif

# Windows uses different path separators
ifeq ($(OS_NAME),Windows)
	sep := ;
else
	sep := :
endif

snappy := snappy-$(SNAPPY_VERSION)


jni_md := $(shell find -L "$(JAVA_HOME)" -name jni_md.h | head -1)
ifneq ($(jni_md),)
jni_include := $(shell dirname "$(jni_md)")
endif


# os=Default is meant to be generic unix/linux

known_os_archs := Linux-x86 Linux-x86_64 Linux-arm Linux-armv6 Linux-armv7 Linux-android-arm Linux-aarch64 Linux-ppc Linux-ppc64 Linux-ppc64le Linux-s390 Linux-s390x Mac-x86 Mac-x86_64 Mac-aarch64 FreeBSD-x86_64 Windows-x86 Windows-x86_64 SunOS-x86 SunOS-sparc SunOS-x86_64 AIX-ppc AIX-ppc64 Linux-riscv Linux-riscv64
os_arch := $(OS_NAME)-$(OS_ARCH)
IBM_JDK_7 := $(findstring IBM, $(shell $(JAVA) -version 2>&1 | grep IBM | grep "JRE 1.7"))

ifeq (,$(findstring $(strip $(os_arch)),$(known_os_archs)))
  os_arch := Default
endif

os_folder := $(shell echo $(OS_NAME) | tr A-Z a-z)

ifneq ($(IBM_JDK_7),)
  $(shell mkdir -p $(IBM_JDK_LIB))
  $(shell cp $(JAVA_HOME)/include/jniport.h $(IBM_JDK_LIB))
  $(shell sed -i "s|#define JNIEXPORT *$$|#define JNIEXPORT  __attribute__((__visibility__(\"default\")))|" $(IBM_JDK_LIB)/jniport.h)
  $(shell sed -i "s|typedef long long jlong;.*|/*typedef long long jlong;*/|" $(IBM_JDK_LIB)/jniport.h)
  $(shell cp $(JAVA_HOME)/include/$(os_folder)/jni_md.h $(IBM_JDK_LIB))
  $(shell sed -i "s|#define JNIEXPORT|#define JNIEXPORT  __attribute__((__visibility__(\"default\")))|" $(IBM_JDK_LIB)/jni_md.h)
  $(shell sed -i "s|typedef long long jlong;.*|/*typedef long long jlong;*/|" $(IBM_JDK_LIB)/jni_md.h)
endif

# cross-compilation toolchain prefix (e.g. "arm-linux-gnueabi-")
CROSS_PREFIX :=

Default_CXX          := $(CROSS_PREFIX)g++
Default_STRIP        := $(CROSS_PREFIX)strip
Default_CXXFLAGS     := -I$(JAVA_HOME)/include -Ilib/inc_mac -O2 -fPIC -fvisibility=hidden -std=c++11
Default_LINKFLAGS    := -shared -static
Default_LIBNAME      := libsnappyjava.so
Default_SNAPPY_FLAGS :=

Linux-x86_CXX       := $(CROSS_PREFIX)g++
Linux-x86_STRIP     := $(CROSS_PREFIX)strip
ifeq ($(IBM_JDK_7),)
  Linux-x86_CXXFLAGS  := -Ilib/inc_linux -I$(JAVA_HOME)/include -O2 -fPIC -fvisibility=hidden -m32 -U__SSE2__  -std=c++11
else
  Linux-x86_CXXFLAGS  := -include $(IBM_JDK_LIB)/jni_md.h -include $(IBM_JDK_LIB)/jniport.h -I$(JAVA_HOME)/include -O2 -fPIC -fvisibility=hidden -m32 -U__SSE2__ -std=c++11
endif
Linux-x86_LINKFLAGS := -shared -static-libgcc -static-libstdc++
Linux-x86_LIBNAME   := libsnappyjava.so
Linux-x86_SNAPPY_FLAGS:=

Linux-x86_64_CXX       := $(CROSS_PREFIX)g++
Linux-x86_64_STRIP     := $(CROSS_PREFIX)strip
ifeq ($(IBM_JDK_7),)
  Linux-x86_64_CXXFLAGS  := -Ilib/inc_linux -I$(JAVA_HOME)/include -O2 -fPIC -fvisibility=hidden -m64 -std=c++11
else
  Linux-x86_64_CXXFLAGS  := -include $(IBM_JDK_LIB)/jni_md.h -include $(IBM_JDK_LIB)/jniport.h -I$(JAVA_HOME)/include -O2 -fPIC -fvisibility=hidden -m64 -std=c++11
endif
Linux-x86_64_LINKFLAGS := -shared -static-libgcc -static-libstdc++
Linux-x86_64_LIBNAME   := libsnappyjava.so
Linux-x86_64_SNAPPY_FLAGS  :=

Linux-ppc_CXX         := g++
Linux-ppc_STRIP       := strip
ifeq ($(IBM_JDK_7),)
  Linux-ppc_CXXFLAGS    := -Ilib/inc_linux -I$(JAVA_HOME)/include -Ilib/inc_mac -O2 -fPIC -fvisibility=hidden -m32 -std=c++11
else
  Linux-ppc_CXXFLAGS    := -include lib/inc_linux/jni_md.h -include $(IBM_JDK_LIB)/jniport.h -I$(JAVA_HOME)/include -I$(JAVA_HOME)/include/linux -O2 -fPIC -m32 -std=c++11
endif
Linux-ppc_LINKFLAGS   := -shared -static-libgcc -static-libstdc++
Linux-ppc_LIBNAME     := libsnappyjava.so
Linux-ppc_SNAPPY_FLAGS  :=

Linux-ppc64le_CXX       := $(CROSS_PREFIX)g++
Linux-ppc64le_STRIP     := $(CROSS_PREFIX)strip
ifeq ($(IBM_JDK_7),)
  Linux-ppc64le_CXXFLAGS  := -Ilib/inc_linux -I$(JAVA_HOME)/include -Ilib/inc_mac -O2 -fPIC -fvisibility=hidden -m64 -std=c++11
else
  Linux-ppc64le_CXXFLAGS  := -include $(IBM_JDK_LIB)/jni_md.h -include $(IBM_JDK_LIB)/jniport.h -I$(JAVA_HOME)/include -I$(JAVA_HOME)/include/linux -O2 -fPIC -m64 -std=c++11
endif
# ppcle64 GLIBC is at 2.17; so disable __tls_get_addr_opt which is dependent on 2.22;
Linux-ppc64le_LINKFLAGS := -shared -static-libgcc -static-libstdc++ -Wl,--no-tls-optimize,--no-tls-get-addr-optimize
Linux-ppc64le_LIBNAME   := libsnappyjava.so
Linux-ppc64le_SNAPPY_FLAGS  :=

Linux-ppc64_CXX       := $(CROSS_PREFIX)g++
Linux-ppc64_STRIP     := $(CROSS_PREFIX)strip
ifeq ($(IBM_JDK_7),)
  Linux-ppc64_CXXFLAGS  := -Ilib/inc_linux -I$(JAVA_HOME)/include -Ilib/inc_mac -O2 -fPIC -fvisibility=hidden -m64 -std=c++11
else
  Linux-ppc64_CXXFLAGS  := -include $(IBM_JDK_LIB)/jni_md.h -include $(IBM_JDK_LIB)/jniport.h -I$(JAVA_HOME)/include -I$(JAVA_HOME)/include/linux -O2 -fPIC -m64 -std=c++11
endif
Linux-ppc64_LINKFLAGS := -shared -static-libgcc -static-libstdc++
Linux-ppc64_LIBNAME   := libsnappyjava.so
Linux-ppc64_SNAPPY_FLAGS  :=

AIX-ppc_CXX       := g++
AIX-ppc_STRIP     := strip
AIX-ppc_LIBNAME   := libsnappyjava.a
ifeq ($(IBM_JDK_7),)
  AIX-ppc_CXXFLAGS     := -Ilib/inc_linux -I$(JAVA_HOME)/include -Ilib/inc_mac -O2 -fPIC -fvisibility=hidden -maix32 -std=c++11
else
  AIX-ppc_CXXFLAGS     := -I$(JAVA_HOME)/include/aix -Ilib/inc_ibm -I$(JAVA_HOME)/include -Ilib/inc_mac -O2 -fPIC -maix32 -std=c++11
endif
AIX-ppc_LINKFLAGS := -shared -static-libgcc -static-libstdc++ -lcrypt
AIX-ppc_SNAPPY_FLAGS  :=

AIX-ppc64_CXX       := g++
AIX-ppc64_STRIP     := strip -X64
AIX-ppc64_LIBNAME   := libsnappyjava.a
ifeq ($(IBM_JDK_7),)
  AIX-ppc64_CXXFLAGS     := -Ilib/inc_linux -I$(JAVA_HOME)/include -Ilib/inc_mac -O2 -fPIC -fvisibility=hidden -maix64 -std=c++11
else
  AIX-ppc64_CXXFLAGS     := -I$(JAVA_HOME)/include/aix -Ilib/inc_ibm -I$(JAVA_HOME)/include -Ilib/inc_mac -O2 -fPIC -maix64 -std=c++11
endif
AIX-ppc64_LINKFLAGS := -shared -static-libgcc -static-libstdc++ -lcrypt
AIX-ppc64_SNAPPY_FLAGS  :=

Linux-s390_CXX       := g++
Linux-s390_STRIP     := strip
ifeq ($(IBM_JDK_7),)
  Linux-s390_CXXFLAGS  := -Ilib/inc_linux -I$(JAVA_HOME)/include -Ilib/inc_mac -O2 -fPIC -fvisibility=hidden -m31 -std=c++11
else
  Linux-s390_CXXFLAGS  := -I$(JAVA_HOME)/include/linux -Ilib/inc_ibm -I$(JAVA_HOME)/include -Ilib/inc_mac -O2 -fPIC -m31 -std=c++11
endif
Linux-s390_LINKFLAGS := -shared -static-libgcc -static-libstdc++
Linux-s390_LIBNAME   := libsnappyjava.so
Linux-s390_SNAPPY_FLAGS  :=

Linux-s390x_CXX       := g++
Linux-s390x_STRIP     := strip
ifeq ($(IBM_JDK_7),)
  Linux-s390x_CXXFLAGS  := -Ilib/inc_linux -I$(JAVA_HOME)/include -Ilib/inc_mac -O2 -fPIC -fvisibility=hidden -m64 -std=c++11
else
  Linux-s390x_CXXFLAGS  := -I$(JAVA_HOME)/include/linux -Ilib/inc_ibm -I$(JAVA_HOME)/include -Ilib/inc_mac -O2 -fPIC -m64 -std=c++11
endif
Linux-s390x_LINKFLAGS := -shared -static-libgcc -static-libstdc++
Linux-s390x_LIBNAME   := libsnappyjava.so
Linux-s390x_SNAPPY_FLAGS  :=

SunOS-x86_CXX       := g++
SunOS-x86_STRIP     := strip
SunOS-x86_CXXFLAGS  := -include lib/inc_linux/jni_md.h -I$(JAVA_HOME)/include -O2 -fPIC -fvisibility=hidden
SunOS-x86_LINKFLAGS := -shared -static-libgcc -static-libstdc++
SunOS-x86_LIBNAME   := libsnappyjava.so
SunOS-x86_SNAPPY_FLAGS  :=

SunOS-sparc_CXX       := g++
SunOS-sparc_STRIP     := strip
SunOS-sparc_CXXFLAGS  := -include lib/inc_linux/jni_md.h -I$(JAVA_HOME)/include -O2 -fPIC -fvisibility=hidden
SunOS-sparc_LINKFLAGS := -shared -static-libgcc -static-libstdc++
SunOS-sparc_LIBNAME   := libsnappyjava.so
SunOS-sparc_SNAPPY_FLAGS  :=

SunOS-x86_64_CXX       := g++
SunOS-x86_64_STRIP     := strip
SunOS-x86_64_CXXFLAGS  := -include lib/inc_linux/jni_md.h -I$(JAVA_HOME)/include -O2 -fPIC -fvisibility=hidden -m64
SunOS-x86_64_LINKFLAGS := -shared -static-libgcc -static-libstdc++
SunOS-x86_64_LIBNAME   := libsnappyjava.so
SunOS-x86_64_SNAPPY_FLAGS  :=

# '-include lib/inc_linux/jni_md.h' is used to force the use of our version,
# which defines JNIEXPORT differently; otherwise, since OpenJDK includes
# jni_md.h in same directory as jni.h, the include path is ignored when
# jni_md.h is included from jni.h

Linux-arm_CXX       := $(CROSS_PREFIX)g++
Linux-arm_STRIP     := $(CROSS_PREFIX)strip
Linux-arm_CXXFLAGS  := -Ilib/inc_linux -I$(JAVA_HOME)/include -O2 -fPIC -fvisibility=hidden -mfloat-abi=softfp -std=c++11
Linux-arm_LINKFLAGS := -shared -static-libgcc
Linux-arm_LIBNAME   := libsnappyjava.so
Linux-arm_SNAPPY_FLAGS:=

Linux-armv6_CXX       := $(CROSS_PREFIX)g++
Linux-armv6_STRIP     := $(CROSS_PREFIX)strip
Linux-armv6_CXXFLAGS  := -Ilib/inc_linux -I$(JAVA_HOME)/include -O2 -fPIC -fvisibility=hidden -mfloat-abi=hard -std=c++11
Linux-armv6_LINKFLAGS := -shared -static-libgcc -std=c++11
Linux-armv6_LIBNAME   := libsnappyjava.so
Linux-armv6_SNAPPY_FLAGS:=

Linux-armv7_CXX       := $(CROSS_PREFIX)g++
Linux-armv7_STRIP     := $(CROSS_PREFIX)strip
Linux-armv7_CXXFLAGS  := -Ilib/inc_linux -I$(JAVA_HOME)/include -O2 -fPIC -fvisibility=hidden -mfloat-abi=hard -std=c++11
Linux-armv7_LINKFLAGS := -shared -static-libgcc
Linux-armv7_LIBNAME   := libsnappyjava.so
Linux-armv7_SNAPPY_FLAGS:=

Linux-android-arm_CXX       := $(CROSS_PREFIX)g++
Linux-android-arm_STRIP     := $(CROSS_ROOT)/bin/llvm-strip
Linux-android-arm_CXXFLAGS  := -Ilib/inc_linux -I$(JAVA_HOME)/include -O2 -fPIC -fvisibility=hidden -std=c++11
Linux-android-arm_LINKFLAGS := -shared -static-libgcc
Linux-android-arm_LIBNAME   := libsnappyjava.so
Linux-android-arm_SNAPPY_FLAGS:=

Linux-aarch64_CXX       := $(CROSS_PREFIX)g++
Linux-aarch64_STRIP     := $(CROSS_PREFIX)strip
Linux-aarch64_CXXFLAGS  := -Ilib/inc_linux -I$(JAVA_HOME)/include -O2 -fPIC -fvisibility=hidden -std=c++11
Linux-aarch64_LINKFLAGS := -shared -static-libgcc -static-libstdc++
Linux-aarch64_LIBNAME   := libsnappyjava.so
Linux-aarch64_SNAPPY_FLAGS:=

Mac-x86_CXX       := g++ -arch i386
Mac-x86_STRIP     := strip -x
Mac-x86_CXXFLAGS  := -Ilib/inc_mac -I$(JAVA_HOME)/include -O2 -fPIC -mmacosx-version-min=10.4 -fvisibility=hidden -std=c++11
Mac-x86_LINKFLAGS := -dynamiclib -static-libgcc
Mac-x86_LIBNAME   := libsnappyjava.dylib
Mac-x86_SNAPPY_FLAGS  :=

Mac-x86_64_CXX       := c++ -arch $(OS_ARCH)
Mac-x86_64_STRIP     := strip -x
Mac-x86_64_CXXFLAGS  := -Ilib/inc_mac -I$(JAVA_HOME)/include -O2 -fPIC -mmacosx-version-min=10.7 -fvisibility=hidden -stdlib=libc++ -std=c++11
Mac-x86_64_LINKFLAGS := -dynamiclib
Mac-x86_64_LIBNAME   := libsnappyjava.dylib
Mac-x86_64_SNAPPY_FLAGS  :=

Mac-aarch64_CXX       := c++ -arch arm64
Mac-aarch64_STRIP     := strip -x
Mac-aarch64_CXXFLAGS  := -Ilib/inc_mac -I$(JAVA_HOME)/include -O2 -fPIC -mmacosx-version-min=10.7 -fvisibility=hidden -stdlib=libc++ -std=c++11
Mac-aarch64_LINKFLAGS := -dynamiclib
Mac-aarch64_LIBNAME   := libsnappyjava.dylib

FreeBSD-x86_64_CXX          := $(CROSS_PREFIX)g++
FreeBSD-x86_64_STRIP        := $(CROSS_PREFIX)strip
FreeBSD-x86_64_CXXFLAGS     := -I$(JAVA_HOME)/include -Ilib/inc_mac -O2 -fPIC -fvisibility=hidden -std=c++11
FreeBSD-x86_64_LINKFLAGS    := -shared -static-libgcc
FreeBSD-x86_64_LIBNAME      := libsnappyjava.so
FreeBSD-x86_64_SNAPPY_FLAGS :=

Windows-x86_CXX          := $(CROSS_PREFIX)g++
Windows-x86_STRIP        := $(CROSS_PREFIX)strip
Windows-x86_CXXFLAGS     := -Ilib/inc_win -O2 -std=c++11
Windows-x86_LINKFLAGS    := -Wl,--kill-at -shared -static
Windows-x86_LIBNAME      := snappyjava.dll
Windows-x86_SNAPPY_FLAGS :=

Windows-x86_64_CXX          := $(CROSS_PREFIX)g++
Windows-x86_64_STRIP        := $(CROSS_PREFIX)strip
Windows-x86_64_CXXFLAGS     := -Ilib/inc_win -O2 -std=c++11
Windows-x86_64_LINKFLAGS    := -Wl,--kill-at -shared -static
Windows-x86_64_LIBNAME      := snappyjava.dll
Windows-x86_64_SNAPPY_FLAGS :=

Linux-riscv_CXX       := $(CROSS_PREFIX)g++
Linux-riscv_STRIP     := $(CROSS_PREFIX)strip
Linux-riscv_CXXFLAGS  := -Ilib/inc_linux -I$(JAVA_HOME)/include -O2 -fPIC -fvisibility=hidden -std=c++11
Linux-riscv_LINKFLAGS := -shared -static-libgcc -static-libstdc++
Linux-riscv_LIBNAME   := libsnappyjava.so
Linux-riscv_SNAPPY_FLAGS:=

Linux-riscv64_CXX       := $(CROSS_PREFIX)g++
Linux-riscv64_STRIP     := $(CROSS_PREFIX)strip
Linux-riscv64_CXXFLAGS  := -Ilib/inc_linux -I$(JAVA_HOME)/include -O2 -fPIC -fvisibility=hidden -std=c++11
Linux-riscv64_LINKFLAGS := -shared -static-libgcc -static-libstdc++
Linux-riscv64_LIBNAME   := libsnappyjava.so
Linux-riscv64_SNAPPY_FLAGS:=


CXX        := $($(os_arch)_CXX)
STRIP     := $($(os_arch)_STRIP)
CXXFLAGS    := $($(os_arch)_CXXFLAGS)
LINKFLAGS := $($(os_arch)_LINKFLAGS)
LIBNAME   := $($(os_arch)_LIBNAME)
SNAPPY_FLAGS := $($(os_arch)_SNAPPY_FLAGS)



CXXFLAGS := $(CXXFLAGS) -DHAVE_CONFIG_H -DNDEBUG
ifneq ($(jni_include),)
CXXFLAGS := $(CXXFLAGS) -I"$(jni_include)"
endif